Question about HP LaserJet 4250n Printer

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Double printing print shows up on paper but there are extra words down the middle...its like the roller is dirty and it is reprinting what was already printed.

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HP do not use fuser oil. The upper roller is made of a non stick coating. When this begins to waer the toner sticks to the roller along with excess paper dust off the paper.This is what will cause a repeat image on a page. You need to swop the fuser unit to cure this fault

Posted on Oct 02, 2009

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The fuser roll has redundent image stuck to it. You will nead to check the reson the fuser is not cleaning. May be lack of fuser oil. Some lazer printers nead fuser oil on a wick that puts a lite film on the roller.

Posted on Oct 01, 2009

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1 Answer

I get plain paper or double when I received fax from my uf5300 laser fax.it print one page from 5 pages that sent and I got empty pages and double somtimes


Paper feed rollers and sheet feed pad dirty. Feed roller on top pad should be just below. Clean with alcohol. Papers have clay in them. Recycled is worst. It will glaze the pick up roller and pad.

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Double printing or double feed??. Double printing means document printed in 2 copies. Double feed means printer feed double paper in one moment. For double printing,please check number of copy of document in printing preference properties.
Double feed occurs when pickup roller fails to pick the paper correctly. It's usually caused by shaft of paper pick up roller which is broken. You should replace drive assembly (include pick up roller) in this case

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Check the cable. It looks like some sort of interference over the cable. Make sure it does not lie next to power cable.

Jul 17, 2009 | Matrix Okidata 120V Printer

1 Answer

Printing appears to reprint on other pages


I have seen several things fix a problems with reprint like yours depending on the spacing between the prints. There is a registration page in the service manual that points likely faults by the distance between reprints. This is based on the diameter of the failed part. Transfer roller, Print cartridge, and the fuser.

Apr 10, 2009 | HP LaserJet 2430tn Printer

1 Answer

Smudge on left side of paper


It seems like your PCU's are dirty and are picking up extra toner. Take them out and look at the green rollers, any extra finger prints or dirt on them? Clean them with a clean paper towel.

Also, check your transfer unit below the PCU's, that may need cleaning or replacing. You can pull that out after removing both PCUs, turn the little screww and look at it. That can also be cleaned with a cleaning wipe or a damp paper towel. There's a little tab that you can turn to free the rollers (they'll still be a little tight) bu then you can turn the rollers to expose more surface area.

Good luck. Be sure to rate the post if it works for you.

Feb 04, 2009 | Ricoh Aficio CL3500N Laser Printer

2 Answers

It looks like it's ghosting - shadows


Most likely the fuser needs replaced. The heat roller is worn and causing reprint.

Jun 27, 2008 | Xerox Phaser 7400DN Laser Printer

1 Answer

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I will give you all the reasons I can think of.
1, If the line is only there when running through a document feeder and not there off the glass. The small strip of glass directly under the document feeder is dirty.
2. The drum has a scratch on it, or the cleaning blade is not cleaning the drum properly. Would require that cartridge replacement.
3. The fuser roller may be work in the middle. You would notice some reprinting , or ghost copying if that were bad.
4. Less likely would be some piece of fuzz in the light path, or a small piece of paper or tape in the paper path smearing the ink across the page.
If your machine prints, see if the line is on a print, if its on a print and not on the copy then it is scanner related.

Mar 13, 2008 | Office Equipment & Supplies

1 Answer

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what's the machine counter? Try to clean the fuser.

Mar 11, 2008 | Konica Minolta Di1610 Copier

1 Answer

Reprinting


Hi there I am a Hp engineer and there are two reasons for reprinting.

1 The toner cartridge has become faulty
2 The Fuser unit is worn or damaged

As you have changed the toner cartridge which is the cheapest unit out of the two the other is going to be the fuser. You can buy these units and they are very easy to install. One way to check that it is the fuser is open the rear cover and remove the door. Once that is removed using the two blue tabs on the unit pinch then the unit will slide out look at the top brown roller and you will find that it is either broken or worn in the middle or simply there may be a piece of paper stuck round it or a sticky label.

If the latter remove and reinstall the unit if nothing visable then the unit will need replacing.

Hope this is some help to you and please could you rate me
Thanks J

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2 Answers

Epson c88+


Ther is a obstruction in paper path, something has dropped down where paper goes in, or a fragment corner of a removed paper jam is in paper pathway

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